Page 146 - Math Grade 12 (Advance)

PROEUS DARA

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u
10% tt'dsh o.1 <j ,fi
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u X 20% 10% -10%
P(X = x) 0.3 0.5 0.1
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u n

20 10 10
= X 0.3 + lOO X 0.5- 100 X 0.1 = 0.1 Y. 10%
100
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10 0.30
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..
w .. ..
1--1
500 0.05

(X-4), ... '1

E[f(X)] = L[f(x) x P(X = x)] '1
.,
!Jf17fJUM : E(lOX) = 'L[lOxx P(X = x)]

2 2
E(X ) = 'L[x x P(X = x)]
E(X-4) = L[(x-4)xP(X=x)] '1

0
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